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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_PendingAnimationTracker_h
#define mozilla_dom_PendingAnimationTracker_h
#include "mozilla/dom/Animation.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIDocument.h"
#include "nsTHashtable.h"
class nsIFrame;
namespace mozilla {
class PendingAnimationTracker final
{
public:
explicit PendingAnimationTracker(nsIDocument* aDocument)
: mDocument(aDocument)
{ }
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(PendingAnimationTracker)
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(PendingAnimationTracker)
void AddPlayPending(dom::Animation& aAnimation)
{
MOZ_ASSERT(!IsWaitingToPause(aAnimation),
"Animation is already waiting to pause");
AddPending(aAnimation, mPlayPendingSet);
}
void RemovePlayPending(dom::Animation& aAnimation)
{
RemovePending(aAnimation, mPlayPendingSet);
}
bool IsWaitingToPlay(const dom::Animation& aAnimation) const
{
return IsWaiting(aAnimation, mPlayPendingSet);
}
void AddPausePending(dom::Animation& aAnimation)
{
MOZ_ASSERT(!IsWaitingToPlay(aAnimation),
"Animation is already waiting to play");
AddPending(aAnimation, mPausePendingSet);
}
void RemovePausePending(dom::Animation& aAnimation)
{
RemovePending(aAnimation, mPausePendingSet);
}
bool IsWaitingToPause(const dom::Animation& aAnimation) const
{
return IsWaiting(aAnimation, mPausePendingSet);
}
void TriggerPendingAnimationsOnNextTick(const TimeStamp& aReadyTime);
void TriggerPendingAnimationsNow();
bool HasPendingAnimations() const {
return mPlayPendingSet.Count() > 0 || mPausePendingSet.Count() > 0;
}
private:
~PendingAnimationTracker() { }
void EnsurePaintIsScheduled();
typedef nsTHashtable<nsRefPtrHashKey<dom::Animation>> AnimationSet;
void AddPending(dom::Animation& aAnimation, AnimationSet& aSet);
void RemovePending(dom::Animation& aAnimation, AnimationSet& aSet);
bool IsWaiting(const dom::Animation& aAnimation,
const AnimationSet& aSet) const;
AnimationSet mPlayPendingSet;
AnimationSet mPausePendingSet;
nsCOMPtr<nsIDocument> mDocument;
};
} // namespace mozilla
#endif // mozilla_dom_PendingAnimationTracker_h
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